This is a pretty easy 200 GS for 800 Microsoft points, but if your not a fan of Sudoku you might not like it all that much. I personally am a fan of Sudoku, I used to have it on my phone and would play it in school so this game wouldn't be a bad buy for me, but if you don't like Sudoku then stay away.
ACHIEVEMENT GUIDE
Beat the Basics - 10 points
Complete lessons 1-5 in tutorial 1 and lessons 1-3 in tutorial 2
For this one, in the menus go to HELP & OPTIONS, and then TUTORIAL. Finish the first 5 under controls and the first 3 under fundamentals.
Natural - 10 points
Solve 10 puzzles with auto pencil and show errors off
For this one just make sure you turn auto pencil and show errors off. You can just do a small 6 x 6 puzzle on easy and after 10 of them you get the achievement.
Too Fast - 20 points
Complete a single player 9x9 puzzle in 1 minute and 20 seconds. Hint: you can turn autopencil on
Not as hard as it seems. When you have auto pencil on, there will be numbers in each box that you are trying to solve, some gray and some black. Usually there will only be one or two black numbers, and one of them is correct. If there is only 1 black number, that is the right answer. If there is two, then one of the two is correct and you just have to figure out which one. Knowing this, and being halfway decent at sudoku this achievement should not be any trouble to you at all.
Time Bandit - 15 points
Beat the time limit for 10 puzzles in Timed mode
If you do a Timed 6 x 6 on easy you will get 3 minutes to solve it. If you can't solve a 6 x 6 on easy in 3 minutes you should not be playing this game. Just do this 10 times and the achievement is yours.
Sampler - 10 points
Complete 1 puzzle in each of the 3 difficulties
As long as you do a 6 x 6, no matter what difficulty, you shouldn't have much trouble. There aren't timed either, so don't rush youself, just think about it and you will figure them out. You will need to do easy, medium and hard.
Super Sizes - 20 points
Beat a puzzle in each grid size: 6x6, 8x8, 9x9, and 12x12
Just do a casual puzzle on easy difficulty with the helpers on. Not timed once again so just take your time and finish the puzzles. Once you finish your last one the achievement will pop.
Friend and Foe - 10 points
Complete 1 puzzle in Co-op, Team Battle, and Duel in Xbox LIVE mode
This will be easiest if you have a friend and you can just boost these, but if not, then just search for games and WIN one of each of these. It says complete but you actually have to win one of each.
Wired - 20 points
Complete 20 games over Xbox LIVE
See 'Socialite' Achievement.
Socialite - 25 points
Complete 25 Multiplayer Games, in either Online or Local Multiplayer game play
Simple as it sounds, just complete 25 games online. If you just do co-op matches, it should take you like 1 minute at the most for each match, so getting Wired and this achievement should not take more than a half hour.
Buku Bank - 10 points
Earn 2,500,000 Buku Score any way you want
See 'Grand Master' Achievement.
Grand Master - 30 points
Earn 10,000,000 Buku Score any way you want
Your best bet is to just play easy casual games of 9x9 or 12x12. No real quick way to get these achievements, just keep playing and keep playing. These puzzles shouldn't take you too long and the faster you do them the more points you get, so play on easy with helpers on and you will get this achievement in a few hours.
Master - 20 points
Complete 200 puzzles in total across the game
After getting the Grand Master and the live achievements, you will be on your way to this one. When you have all the others, just keep on playing casual 6x6 games on easy and this one shouldn't take you too much longer, and you got your full 200 GS!
Shouldn't have any trouble completing this game if you know how to do Sudoku. But if you have any questions or are having trouble feel free to ask me any questions you may have.
Beat the Basics - 10 points
Complete lessons 1-5 in tutorial 1 and lessons 1-3 in tutorial 2
Time Bandit - 15 points
Beat the time limit for 10 puzzles in Timed mode
Sampler - 10 points
Complete 1 puzzle in each of the 3 difficulties
Super Sizes - 20 points
Beat a puzzle in each grid size: 6x6, 8x8, 9x9, and 12x12
Natural - 10 points
Solve 10 puzzles with autopencil and show errors off
Friend and Foe - 10 points
Complete 1 puzzle in Co-op, Team Battle, and Duel in Xbox LIVE mode
Buku Bank - 10 points
Earn 2,500,000 Buku Score any way you want
Too Fast - 20 points
Complete a single player 9x9 puzzle in 1 minute and 20 seconds. Hint: you can turn autopencil on
Master - 20 points
Complete 200 puzzles in total across the game
Wired - 20 points
Complete 20 games over Xbox LIVE
Grand Master - 30 points
Earn 10,000,000 Buku Score any way you want
Socialite - 25 points
Complete 25 Multiplayer Games, in either Online or Local Multiplayer game play